Home / 122,970.15-169,705.14-75,208.50

Finding the Fourth Proportional to 122,970.15, 169,705.14 and 75,208.50

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Solution

The fourth proportional to 122,970.15, 169,705.14 and 75,208.50 is: 103,791.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,970.15 : 169,705.14 = 75,208.50 : x
  2. Step 2: Convert to fraction form
    122,970.15/169,705.14 = 75,208.50/x
  3. Step 3: Cross multiply
    122,970.15x = 169,705.14 × 75,208.50
  4. Step 4: Simplify right side
    122,970.15x = 12,763,269,021.69
  5. Step 5: Solve for x
    x = 12,763,269,021.69/122,970.15
  6. Step 6: Final answer
    x = 103,791.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.